Automatic drain-back for elevated liquid-containers



1.. E. BAKER.

AUTOMATIC DRAIN BACK FOR ELEVATED LIQUID CONTAINERS.

APPLICATION FILED DEC. 16. I9I9.

Pmma NOV. 1, 1921 INVENTOR.

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LINNAEUS E. BAKER, 0F FORT WAYNE, INDIANA, ASSIGNOR TO WAYNE OIL TANK AND ?UMP CQMPANY, 0F FDRT WAYNE, INDIANA, A CORPORATION OF INDIANA.

, AUTGMATIC DRAIN-BACK FOR ELEVATED LIQUID-CONTAINERS.

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Specification of Letters Patent.

Patented Nov. 1, 1921.

Application filed December 16, 1919. Serial No. 1345, 315.

' is called, locked up position.

p In handling inflammable liquids such as gasolene with dispensing apparatus having an elevated container, safety'regulations require that such liquid be drained back to the underground storage tank or other source of supply when the apparatus is locked up, as for the night. invention provides an automatic drain-back to meet such requirements.

The particular embodiment of my invention selected for illustration is a gasolene dispensing apparatus for outdoor use.

lhe drawing shows an elevation of an .elevated container for liquid, with parts broken away and in section .to show the automatic drain-back mechanism in position to operate and the means for operating same. Parts below the elevated container are shown indotted lines.

Referring now to the ddrawings; A, is the cylinder of an elevate made of glass or provided with windows; a, is the container bottom and a is the .top, these parts being suitably connected by tie-rods of. The container is mounted upon a edestal' P.

is'the discharge pipe vertically slidable through the stufiing box a C, is the till pipe and D, the overflow pipe fixed in position within the container.

A drain-back orifice E, is provided in the bottom of the container'to carry back to the stoarge tank the contents oi the container when so desired, as when locking up the apparatus for the night. A needle valve 6,- guided by the bracket 6 is adapted to keep the orifice E, normally closed and to be raised to open position by manipulation of theleve'r '6 being. ivotedthereto b a screw a provided to ar'lgust the length 0 themedie valve element. The, lever 6 is pivoted container usually at e, to a bracket at, on the container top 0. The free end 6", of the lever 6 is adapted to contact with and-be raised by the top of the discharge pipe B, when raised to drain back position. 6 may be operated in any other convenient manner. v

The vertically slidable discharge pipe B, carries on its lower end an l. b, terminates outwardly in a hose copnection b and car-v ries a setting lai'ilriL, with latch bar 1, adapted to engage suitable notches in the scale When the disphange pipe is raised to the extreme positio shown in the draw- Obviously the lever ing, that is to loclt position, it is ready to be left for the night and will then automatically drain the elevated container in the manner shown in the drawing."

When. the latch bar Z, is withdrawn from the lock position and lowered, the attached discharge pipe permits the lever c and the needle valve e, to descend by gravity and close the orifice E,'before the fill"position is reached by the latch bar. Theelevated container may then be refilled.

Any means for causing the drain-back valve to be automatically opened by avertically adjustable member when the apparas tus is in look up position is within the scope of my invention.

I clann as my invention and desire to secure by Letters Patent of the United States.

1. In a liquid dispensing'apparatus havingi an elevated liquid container, the combination of a valve to drain the contents of the container back to the storage tank, a

moving element within the container, and

means connected with the valve and s:

gageable by the moving element, to open-the valve when placing the apparatus in position for temporary disuse.

2. In combination with a drain valve and 1 i an adjustable discharge pipe forthe elem vated liquid container of a dispensing ape paratus, matically through contact with the means for opening said valve autodis-T charge pipe when the apparatus is put in lock up position.

3. In a liquid bination of a drain valve for the elevated liquid container, a vertically slidabledischarge pipe, and a lever tn automatically dispensing apparatus hay! ing an elevated liquid container, the com I H open said valve by the contact of said lever with the discharge pipe when the apparatus is nmniganieted. to lock up position.

2. In a liquid. dispensing apparatus having an elevated container, the combination. of x vei tie'aiiiy movable discharge pipe, a drain valve normality resting upon its seat in closed position; it lever connected to said valve, said. :iiWBI projecting into the path of the discharge pipe to raise the valve from eeneeo f In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

LINNAEUS E. BAKER. Witnesses:

JOHN R. WEMHOFF, LAWRENCE PARROT. 

